Matthew Stewart
  • Port Deposit, MD
  • United States
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Soffit Overhang Spray Foam

Started this discussion. Last reply by tedkidd Feb 29, 2012. 11 Replies

I have proposed spray foam for my clients soffits after showing him the blue region with my infrared camera.  The client wants additional return on investment calculations for this measure.  I have…Continue

70 year old boiler AFUE?

Started this discussion. Last reply by tedkidd Oct 13, 2011. 7 Replies

What would you estimate the AFUE is for a 70 year old boiler?

 

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Latest Activity

Matthew Stewart replied to Todd Ewald's discussion Slightly used Energy Auditing equipment for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
Jan 12, 2013
tedkidd replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"If only we could get program designers to understand the importance of those words. They seem to define improvements from a pass fail perspective without regard to interconnected benefits."
Feb 29, 2012
Sean Lintow Sr replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Fully agreed &/or I list it as required work for adding attic insulation, etc... Matthew, etc... while everyone likes to quantify that this has this or that payback or ROI, lets not forget the one basic - the whole house is a system &…"
Feb 29, 2012
tedkidd replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Do you ask a bunch of confort questions? What fuel source? Did you also check after bd for "bleeding?" Why were you there?"
Feb 26, 2012
Matthew Stewart replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Ted, Answers don't jump out.  Realizing that the thermal imaging is from blue to red in just 12 deg of difference means that the top plates are colder but most likely not a real big energy suck.  The blower door was 1.5 times BAS so…"
Feb 26, 2012
tedkidd replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"People pay to remove pain.    What is the pain?   What is the problem you are curing?  If it is simply energy reduction don't be surprised people want payback.  You need to pry open additional problems, particularly if…"
Feb 26, 2012
Robert Maloney replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Sounds like a lot of work for a little reduction in air infiltration. If it could be incorporated with other work in the same area then it would make some sense.  Sometimes chasing little leaks can't be justified. Unless the IR images show…"
Feb 25, 2012
Bud Poll replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Hi Matthew, The area in question is often a complex of framing details and as you stated, they change with time.  Shrinkage, warping and hidden details behind that soffit can create energy loss that shows up dramatically with an IR image. …"
Feb 25, 2012
Matthew Stewart replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Thank you for the replies.  I should have been clearer.  You know that 1/4" gap area when the wall top plate shrinks and air dumps in behind the drywall.  I am speaking of the wall- ceiling juncture at the exterior walls where…"
Feb 25, 2012
Sean Lintow Sr replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"If I am reading this question correctly the answer would be 0 - now if you are talking about the area above the top plate up to the roof sheathing & you are going with a hot roof system - that is easily calculated in Rem-Rate or…"
Feb 25, 2012
Robert Maloney replied to Matthew Stewart's discussion Soffit Overhang Spray Foam
"Why do you want to insulate the soffits ? What do you see as a benefit ?"
Feb 25, 2012
Matthew Stewart posted a discussion

Soffit Overhang Spray Foam

I have proposed spray foam for my clients soffits after showing him the blue region with my infrared camera.  The client wants additional return on investment calculations for this measure.  I have indicated that this is beyond the modeling capabilities of our software.  Any ideas on how to relay the value of this procedure.Txx.MattSee More
Feb 25, 2012
tedkidd replied to Matthew Stewart's discussion 70 year old boiler AFUE?
"Sure Hal,   I think this is getting away from the OP question though, which I suspect refers to a residential system (this is Home Energy Pros).     I could be wrong, usually am at least once a day and hope to keep that up for a…"
Oct 13, 2011
Hal Skinner replied to Matthew Stewart's discussion 70 year old boiler AFUE?
"The boilers in the pictures of my post have a low fire / high fire system.  They were always on low fire until the temp came down and the high fire mode kicked on for howere long.  The only time one would be turned off was for annual…"
Oct 13, 2011
tedkidd replied to Matthew Stewart's discussion 70 year old boiler AFUE?
"I think boiler AFUE is a really tough thing to narrow down.  If a boiler is grossly oversized it will tend to go very cold.  Cycling losses will be huge.  So measuring combustion only tells a very small part of the picture.…"
Oct 13, 2011
Hal Skinner replied to Matthew Stewart's discussion 70 year old boiler AFUE?
"Hi Matthew.  The boilers and steampipes in these pictures are from the original boilers from this hospital when it was built in 1940 or 41.  I coated these in 1989.  It dropped the skin temperature from 267F down to 144F.  The…"
Oct 6, 2011

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Company
American Home Energy Corporation
Professional Certification
BPI Analyst, Envelope
Professional Interests
Cogeneration, Energy Efficiency, Renewable Energy, Solar PV, Geothermal, Passive Solar, Commercial Energy Audits,
Lighting
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http://www.americanenergycorporation.com
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At 9:55am on February 19, 2011, Diane Chojnowski said…

Hi Matthew,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!


Thanks!
Diane, HEP Moderator

 
 
 

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